// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*****************************************************************************************
 *
 *   Copyright (C) 1996-2009, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 **/
/**
 * Port From: JDK 1.4b1 : java.text.Format.IntlTestNumberFormatAPI Source File:
 * java/text/format/IntlTestNumberFormatAPI.java
 */

/*
    @test 1.4 98/03/06
    @summary test International Number Format API
*/

package com.ibm.icu.dev.test.format;

import com.ibm.icu.dev.test.CoreTestFmwk;
import com.ibm.icu.text.NumberFormat;
import com.ibm.icu.util.ULocale;
import java.math.BigInteger;
import java.text.FieldPosition;
import java.text.ParseException;
import java.text.ParsePosition;
import java.util.Locale;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class IntlTestNumberFormatAPI extends CoreTestFmwk {
    // This test checks various generic API methods in DecimalFormat to achieve 100% API coverage.
    @Test
    public void TestAPI() {
        Locale startLocale = Locale.getDefault();

        logln("NumberFormat API test---");
        logln("");
        Locale.setDefault(Locale.ENGLISH);

        // ======= Test constructors

        logln("Testing NumberFormat constructors");

        NumberFormat def = NumberFormat.getInstance();

        NumberFormat fr = NumberFormat.getInstance(Locale.FRENCH);

        NumberFormat cur = NumberFormat.getCurrencyInstance();

        NumberFormat cur_fr = NumberFormat.getCurrencyInstance(Locale.FRENCH);

        NumberFormat per = NumberFormat.getPercentInstance();

        NumberFormat per_fr = NumberFormat.getPercentInstance(Locale.FRENCH);

        NumberFormat integer = NumberFormat.getIntegerInstance();

        NumberFormat int_fr = NumberFormat.getIntegerInstance(Locale.FRENCH);

        // Fix "The variable is never used" compilation warnings
        logln("Currency : " + cur.format(1234.5));
        logln("Percent : " + per.format(1234.5));
        logln("Integer : " + integer.format(1234.5));
        logln("Int_fr : " + int_fr.format(1234.5));

        // ======= Test equality

        logln("Testing equality operator");

        if (per_fr.equals(cur_fr)) {
            errln("ERROR: == failed");
        }

        // ======= Test various format() methods

        logln("Testing various format() methods");

        //        final double d = -10456.0037; // this appears as -10456.003700000001 on NT
        //        final double d = -1.04560037e-4; // this appears as -1.0456003700000002E-4 on NT
        final double d = -10456.00370000000000; // this works!
        final long l = 100000000;

        String res1 = new String();
        String res2 = new String();
        StringBuffer res3 = new StringBuffer();
        StringBuffer res4 = new StringBuffer();
        StringBuffer res5 = new StringBuffer();
        StringBuffer res6 = new StringBuffer();
        FieldPosition pos1 = new FieldPosition(0);
        FieldPosition pos2 = new FieldPosition(0);
        FieldPosition pos3 = new FieldPosition(0);
        FieldPosition pos4 = new FieldPosition(0);

        res1 = cur_fr.format(d);
        logln("" + d + " formatted to " + res1);

        res2 = cur_fr.format(l);
        logln("" + l + " formatted to " + res2);

        res3 = cur_fr.format(d, res3, pos1);
        logln("" + d + " formatted to " + res3);

        res4 = cur_fr.format(l, res4, pos2);
        logln("" + l + " formatted to " + res4);

        res5 = cur_fr.format(d, res5, pos3);
        logln("" + d + " formatted to " + res5);

        res6 = cur_fr.format(l, res6, pos4);
        logln("" + l + " formatted to " + res6);

        // ======= Test parse()

        logln("Testing parse()");

        //        String text = new String("-10,456.0037");
        String text = new String("-10456,0037");
        ParsePosition pos = new ParsePosition(0);
        ParsePosition pos01 = new ParsePosition(0);
        double d1 = ((Number) fr.parseObject(text, pos)).doubleValue();
        if (d1 != d) {
            errln("ERROR: Roundtrip failed (via parse()) for " + text);
        }
        logln(text + " parsed into " + d1);

        double d2 = fr.parse(text, pos01).doubleValue();
        if (d2 != d) {
            errln("ERROR: Roundtrip failed (via parse()) for " + text);
        }
        logln(text + " parsed into " + d2);

        double d3 = 0;
        try {
            d3 = fr.parse(text).doubleValue();
        } catch (ParseException e) {
            errln("ERROR: parse() failed");
        }
        if (d3 != d) {
            errln("ERROR: Roundtrip failed (via parse()) for " + text);
        }
        logln(text + " parsed into " + d3);

        // ======= Test getters and setters

        logln("Testing getters and setters");

        final Locale[] locales = NumberFormat.getAvailableLocales();
        long count = locales.length;
        logln("Got " + count + " locales");
        for (int i = 0; i < count; i++) {
            String name;
            name = locales[i].getDisplayName();
            logln(name);
        }

        fr.setParseIntegerOnly(def.isParseIntegerOnly());
        if (fr.isParseIntegerOnly() != def.isParseIntegerOnly()) {
            errln("ERROR: setParseIntegerOnly() failed");
        }

        fr.setGroupingUsed(def.isGroupingUsed());
        if (fr.isGroupingUsed() != def.isGroupingUsed()) {
            errln("ERROR: setGroupingUsed() failed");
        }

        fr.setMaximumIntegerDigits(def.getMaximumIntegerDigits());
        if (fr.getMaximumIntegerDigits() != def.getMaximumIntegerDigits()) {
            errln("ERROR: setMaximumIntegerDigits() failed");
        }

        fr.setMinimumIntegerDigits(def.getMinimumIntegerDigits());
        if (fr.getMinimumIntegerDigits() != def.getMinimumIntegerDigits()) {
            errln("ERROR: setMinimumIntegerDigits() failed");
        }

        fr.setMaximumFractionDigits(def.getMaximumFractionDigits());
        if (fr.getMaximumFractionDigits() != def.getMaximumFractionDigits()) {
            errln("ERROR: setMaximumFractionDigits() failed");
        }

        fr.setMinimumFractionDigits(def.getMinimumFractionDigits());
        if (fr.getMinimumFractionDigits() != def.getMinimumFractionDigits()) {
            errln("ERROR: setMinimumFractionDigits() failed");
        }

        // ======= Test getStaticClassID()

        //        logln("Testing instanceof()");

        //        try {
        //            NumberFormat test = new DecimalFormat();

        //            if (! (test instanceof DecimalFormat)) {
        //                errln("ERROR: instanceof failed");
        //            }
        //        }
        //        catch (Exception e) {
        //            errln("ERROR: Couldn't create a DecimalFormat");
        //        }

        Locale.setDefault(startLocale);
    }

    // Jitterbug 4451, for coverage
    @Test
    public void TestCoverage() {
        class StubNumberFormat extends NumberFormat {
            /** For serialization */
            private static final long serialVersionUID = 3768385020503005993L;

            public void run() {
                String p = NumberFormat.getPattern(ULocale.getDefault().toLocale(), 0);
                if (!p.equals(NumberFormat.getPattern(ULocale.getDefault(), 0))) {
                    errln("NumberFormat.getPattern(Locale, int) should delegate to (ULocale,)");
                }
            }

            @Override
            public StringBuffer format(double number, StringBuffer toAppendTo, FieldPosition pos) {
                return null;
            }

            @Override
            public StringBuffer format(long number, StringBuffer toAppendTo, FieldPosition pos) {
                return null;
            }

            @Override
            public StringBuffer format(
                    BigInteger number, StringBuffer toAppendTo, FieldPosition pos) {
                return null;
            }

            @Override
            public StringBuffer format(
                    java.math.BigDecimal number, StringBuffer toAppendTo, FieldPosition pos) {
                return null;
            }

            @Override
            public StringBuffer format(
                    com.ibm.icu.math.BigDecimal number,
                    StringBuffer toAppendTo,
                    FieldPosition pos) {
                return null;
            }

            @Override
            public Number parse(String text, ParsePosition parsePosition) {
                return null;
            }
        }
        new StubNumberFormat().run();
    }
}
